Your paranoia is very justified, I actually have a friend who built a completely fake identity specifically to join FB and be part of the group, he uses Tor and

Your paranoia is very justified, I actually have a friend who built a completely fake identity specifically to join FB and be part of the group, he uses Tor and everything. Meetup-wise, it won't be long before something is organized in LA, a lot of the members are actually based in LA (including the current admin).